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Modification of waterproofing asphalt by PVC packaging waste
Author(s) -
Fang Changqing,
Zhou Shisheng,
Zhang Maorong,
Zhao Shijie
Publication year - 2009
Publication title -
journal of vinyl and additive technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 35
eISSN - 1548-0585
pISSN - 1083-5601
DOI - 10.1002/vnl.20204
Subject(s) - waterproofing , materials science , polyvinyl chloride , softening point , asphalt , composite material , vinyl chloride , polypropylene , membrane , chlorinated polyvinyl chloride , polymer , chemistry , biochemistry , copolymer
Recycled packaging waste poly(vinyl chloride), instead of an ordinary polymer modifier, was adopted for the modification of an asphalt waterproofing membrane. The physical performance of the membrane was studied. Results showed that the softening point of the modified asphalt was increased, while the penetration degree was reduced. Also, under natural aging conditions, the tension, the retention of extension under the greatest tension, and the retention of low‐temperature flexibility were all improved significantly. At the same time, the resistance to acid, alkali, and salt corrosion of the modified waterproofing membrane was improved. The mechanism of the modification was studied by Fourier transform infrared spectroscopy and microstructure analysis. J. VINYL ADDIT. TECHNOL., 2009. © 2009 Society of Plastics Engineers